Extractor fan



FIG. 1 is a perspective view of the front and one side of the extractor fan showing my new design;

FIG. 2 is an elevational view of the front thereof;

FIG. 3 is an elevational view of the rear thereof;

FIG. 4 is an elevational view of one side thereof;

FIG. 5 is an elevational view of the other side thereof;

FIG. 6 is a plan view of the top thereof; and,

FIG. 7 is a plan view of the bottom thereof.

The broken lines in the drawings depict parts of the extractor fan that form no part of the claim. 

CLAIM The ornamental design for an extractor fan, as shown and described. 